David Charles Grusch speaking before Congress (Picture: YouTube)

A US whistleblower who alleged the government is hiding evidence of extraterrestrial life has said people have been ‘harmed or injured’ in an effort to cover-up the information.

David Charles Grusch spoke to the Debrief in June, arguing authorities are hiding ‘intact and partially intact’ alien vehicles, and evidence of them is being illegally withheld from Congress.

He added that when he turned over classified information about the vehicles to Congress, he suffered retaliation from officials, and is currently part of an active whistleblower investigation.

When asked by Representative Tim Burchett whether anyone had been harmed or injured in an attempt to cover-up details of the findings, Mr Grusch replied: ‘Yes. Personally.’

Mr Burchett continued, asking if he was aware of anyone who had been murdered in an attempt to keep the information concealed.

‘I directed people with that knowledge to the appropriate authorities,’ said Mr Grusch.

He added that in his investigations into the existence of the vehicles, he had interviewed 40 witnesses over four years. He said he knew the exact locations of the evidence, and had provided them to the Inspector General.’

Discussing his treatment after turning whistleblower, Mr Grusch added that authorities had used ‘brutal tactics’ to hurt him ‘professionally and personally’.

He also likened the tactics used against those who speak up about UAPs as ‘administrative terrorism’.

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He was not able to comment if people had been murdered.